Roller-bearing for carpet-sweepers.



No. 709,444. Patented sept. ls, |90

' F. c: MASON.

ROLLERBEARING FUR CARPET SWEEPERS.

(Application filed Oct. 80, 1901.)

(No Model.)

WVM/Leones `2 5 hub of the carpet-sweeper.

. UNITED STATES i ATENT FFICTE.

FRANCIS C. MASON, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO THF. BISSELL CARPET SWEEPER COMPANY, OF GRAND RAPIDS, MICHIGAN,

A CORPORATION.

ROLLER-BEARINGA FOR CARPET-SWEEPERS.

SPECIFICATION forming part of Letters Patent No. 709,444, dated September 16, 19021. Application led October 30, 1901. Serial No. 80,554. (No model.)

5 Michigan, have invented new and useful Improvements in Roller-Bearings for Carpet.- Sweepers, of which the following is a specification. Y

My invention relates to certainV new and 1o useful improvements in roller-bearings for carpet-sweepers; and the inventionl consists in combining with the driving-wheels of the p carpet-sweeper a series of antifriction-rollers arranged in the hub of the sweeper and between the hub and the journal of the drivingwheel axle, also in means hereinafter shown and described for retaining the rollers in position in the hub of the wheel.

The objects of myinvention are, first, to

zo furnish a cheap and efficient roller-bearing for a carpet-sweeper; second, to furnish suitable means for retaining the rollers inthe hub of the carpet-sweeper; third, to facilitate the insertion of the rollers in position-inthe These Aobjects I accomplish by means of the mechanism illustrated in the accompanying drawings, in which- Figure l shows an end elevation of the car- 3o pet-sweeper constructed in accordance with the several views.

A represents the carpet-sweeper case,which may be constructed of wood or any suitable material and of any suitable shape.

B B show two of the driving-wheels at the 4o end of the case.

C C, dac., show the antifriction-rollers.

In Fig. l the rollers are shown in the position in thehub of the-wheel, the' elastic retaining-strip being cut away in order to show the position of the wheel, the-hub, and the antifriction-rollers. Y

D shows the driving-wheel axle.

The spring-guard is shown by E, which in the example of my invention shown in the 5o drawings extends across the end of the case and in close proximity to the hubs of the driving-wheelsi F is the support for the bearings of the brush-roller.

G is the-brushroller, and I is the frictional pulley on the brushroller,which engages with the peripheries of the driving-wheels B B.

.I is a washer between the hub of the driving-wheel and the case. This washer .I may be secured to the hub so as to revolve with it and in that way become a part thereof. Instead of securing the washer .I to the hub, however, it may be secured to the case or may be left as a loose washer between the hub and the case. This washer furnishes i a guard which prevents the rollers C C, dac., from being driventoo far toward the sweeper-case. Thus it holds the rollers in position at one end of the hub. The elastic guard E passes in close proximity to the outer end of the hub of the driving-Wheel and serves to retain the rollers in proper position within the hub.

H is the bail-support for the carpet-sweeper.

With the construction above described I am enabled to` bore the opening in the hub entirely through, if desired, and to insert the rollers of preferably uniform size into the hub and around the axle D. This greatly facilitates the construction of the carpetsweeper roller-bearings and enables me to use these rollers in a hub which is solid and made integral with the wheel itself. If desired, the washer may be applied at the outer end of the hub and between the outer end of the hub and the spring-guard E. This construction is adapted to all kinds of carpet-sweep ers and to wheels of iron or other suitable metal where it is desired to apply a rollerbearing without the necessity of making the hub in two or more sections.

Having thus described my invention, what I claim to have invented, and desire to secure by Letters Patent, is-

The combination of a casing having a driving-wheel, an axle carried by the casing and extending through the hub of said drivingwheel, and the hub extending outward beyond the rim of the wheel, a series of antifriction-rollers in the hub bearing against said axle, a guard on the casing crossing the outer open end of the hub and adapted to dimy hand in presence of two subscribing Witreetly engagethe outer ends of said rollers tok nesses.

thereby prevent outward displacement of the same and to also hold the Wheel on its axle, FRANCIS C MASON 5 and independent means for preventing in- Witnesses:

Ward displacement of said rollers. i EDWARD TAGGART,

In testimony whereof I have hereunto set MARY S. TOOKER.' 

